Εικόνες σελίδας
PDF
Ηλεκτρ. έκδοση

Great care has been bestowed upon the scientific portion of the work, so as to make the rules simple and intelligible to the least advanced ́ scholar; those explanations being given which an experience of many years in teaching has shown to be the best.

[ocr errors]

A correct idea of a unit being indispensable to a thorough knowledge of arithmetic, the attention of the pupil is prominently directed to the necessity of some standard in comparing quantities, and to the various kinds which must be used to correspond with the different kinds of quantity which are compared. The definition and uses of the unit being the same in all the branches of mathematics, an accurate perception of the subject in arithmetic will greatly facilitate the acquisition of the higher branches.

The division of numbers into Simple and Compound has been adhered to. The term Simple is applied to those numbers which are expressed in terms of the same unit. Thus, £3, £5, and £10 are simple numbers, the unit in each being the £; and the operations of arithmetic may be performed upon them in the same manner as if the kind of unit were not expressed. The number £2 3s. 6d. is a compound number, being compounded of units of different kinds—viz. pounds, shillings, and pence.

An Appendix, embracing Mensuration, with its applications to Carpentry, Masonry, Land Surveying, &c., and a brief exhibition of the two methods of Book-Keeping by single and double entry, will add much to the value of the work.

A Key for the use of teachers will accompany the arithmetic. To prevent any mistake by confounding this work with the arithmetic published by Mr. Roswell C. Smith, the author has associated with his own, the name of his assistant, Mr. R. T. W. Duke, for whose kindness in aiding him in the revision of the proofs, he would take this occasion to express his acknowledg

ments.

Virginia Military Institute, }

January 1845.

FRANCIS H. SMITH.

[blocks in formation]
[blocks in formation]
[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][ocr errors][merged small][merged small][merged small][merged small][ocr errors][ocr errors][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][ocr errors][merged small][merged small]
« ΠροηγούμενηΣυνέχεια »